太陽能集熱系統目前在再生能源上的應用中扮演著相當重要的角色，其技術的研究與發展也在工程領域中佔有其不容忽視的地位。在中溫太陽能集熱系統中，聚焦型之線性菲涅爾透鏡有著相當的發展潛力。因此在本研究中，將探討與分析菲涅爾透鏡應用於太陽能集熱系統之效益。在完成系統之設計與建構後，以不同的量測方式擷取有效的資料進行數據的處理與分析，除此之外，亦採用一數值模型同時進行集熱器熱效率之模擬，研究結果顯示，模擬與實驗結果趨勢相符，相對誤差大多都能控制在7%以內，且此一數值模型亦可被應用於高溫系統中。此外模擬中發現線性菲涅爾透鏡集熱系統溫度可達到250℃，且平均集熱效率能達到50%。本論文結果指出線性菲涅爾透鏡的應用的確有能夠運用於中溫太陽能系統集熱器以及改善集熱效率的可能。

Solar collector systems are starting to play an important role in today’s world. Solar collectors system which utilizes linear Fresnel lenses as the concentrators are a good alternative in the area of medium temperature concentrators. In this research; a solar thermal collector system that uses linear Fresnel lenses was investigated and analyzed; the system was designed and then built, after the collector and the receiver were placed, experiments began; different measurements were made to collect useful data. A physical model to simulate the collector was developed to study the performance of the system. Experimental results were compared to the results obtained in the simulated model and the deviation was found to be around 7%. The physical model was used as well to simulate the system at higher inlet temperatures. It was possible to see that the system performed well at temperatures up to 250℃ achieving an average efficiency of 50%. This showed that this type of collector is a relatively good alternative in solar thermal applications.

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